Cable-clamp.



F. M. RAYMON CABLE cum.

APPLICATION FILEDJULY Patented. Nov. 7, 1916,

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CABLE CLAMP.

APPLICATION FILED JULY 25.1914;

Patented Nov. 7, 1916.

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FREDERIC M. RAYMOND, OF CLEVELAND, OHIO.

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CABLE-CLAMP.

Specification of Letters Patent.

Patented Nov. *7, 1916.

Application filed July .25, 1914. Serial No. 853,132.

To all whom it'may concern:

Be it known that I, FREDERio M. RAY- MOND, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Cable- Clamps, of which the following is a specification. I

My invention relates to improvements 1n clamps and more particularly to those adapted for clamping cables, that the cables may be drawn through conduits and the like and has for its primary object to provide a device of this character which is of a simple construction, will effectively clampv the end of a cable so that slipping thereof is prevented and is so constructed as to be capable of use in connection with cables of various sizes.

Another important object of my invention is to provide a device of the character described that consists of two parts that are arranged to interlock one another and have the cable to be clamped interposed therebetween so that the parts when moved into interlocking engagement will effec tively clamp the cable so that slipping thereof is prevented.

Another important object is to provide a device of the character described that is so constructed as to be capable of clamping cables of different sizes in a reliable manner and without necessitating any adjustment therein, said device being capable of easy attachment and inexpensive to manufacture.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification and then more particularly pointed out as claimed.

With reference to the drawings, wherein I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts, Figure 1 is a longitudinal sectional view partly in elevation showing my improved device in assembled operative position, Fig. 2 is a vertical transverse sectional view taken on line 2-2 of Fig. 1, Fig. 3 is a transverse sectional view taken on line 3-3 of Fig. 1 at a point adjacent to the forward end of the clamp, Fig. 4 is a detail perspective view of one of the clamping members, and Fig. 5 is a detail perspective view of the other of the clamping members.

Referring to the drawings by characters of reference, the numerals 1 and 2 designate coacting clamping members that are formed in the nature of rectangular plates of any suitable metal and are designed to have a cable interposed therebetween when the cable is to be clamped. Tongues 3 are formed on certain ends of the clamping members 1 and 2, are offset and apertured also rounded at their outer ends. U-shaped links 4; are mounted on the tongues 3 and have apertures in. the end portions thereof which aline with the apertures in the tongues. Bolts 5 are inserted through the links and tongues and have nuts 6 threaded on their unheaded terminals. Certain of the openings in the links l are preferably threaded to receive the threaded end portions of the bolts. Chains 6 are connected with the links 4 and to the line by means of which the two members of the clamp are prevented from becoming separated from each other. The member 2 is provided upon its upper face with a longitudinal dove-tailed groove 8 which is tapered toward that end of the member 2 on which the tongue 3 is formed,

or better the front end of the: member 2. Formed in this groove 8 centrally of the longitudinal edges thereof, is a longitudinal and approximately semi-circular groove 9. The groove 9 tapers, that is, decreases in depth toward the front of the member 2 and likewise in width so that cables of different sizes may be clamped as will be later more fully described. v

The member 1 is provided upon its under face with a dove-tailed and forwardly tapered rib or projection 10 in which is formed a groove 11 that is similar to the one 9 but considerably larger. This groove 11 decreases in depth and width toward its forward end. The groove .9 terminates at a point spaced from the forward end of the dove-tail groove 8 and at that point communicates with the groove 11 which extends throughthe forward end of the rib 10 as at 12.

In operation, the cable is placed within the groove 11 with its end disposed at a point where it will be readily clamped, said arrangement being dependent on the size of the cable being operated upon and the clamp' being adapted to engage cables of all different diameters. When the member 2 is pulled into locking cooperation with the member 1, as will be readily seen, it moves into sliding cooperation therewith and effects 7 a tight clamping upon the cable, not shown.

The dove-tailed rib and groove 10 and 8 prevent derangement of the members 1 and 2 relative to one another and the arrangement of grooves 9 and 11 insure a positive gripping and clamping action on the cable.

It will be readily seen that cables of various sizes may be clamped without necessitating any adjustment in the clamp, as said adjustment is self-acting;

The clamp is suspended by the section or member having the rib which is moved upwardly with respect to the other clamping member in engaging the cable and owing to the gripping faces of the tapered grooves any tendency of the rope to pull out would tend to cause a corresponding movement of the section or member having the dove-. tailed groove and would result in an increased clamping action which is thereby coextensive with the strain and increased with the same.

In practice, I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as the pr ferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrent with the adoption of my device will necessarily. vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention, as set forth.

What is claimed is:

1. A cable clamp comprising coacting clamping plates, one of said plateshaving a longitudinally extending tapered dove-tail Copies of this patent may be obtained for groove formed in one face thereof, a longitudinally extending tapered and dove-tail rib formed on the corresponding face of the other of the clamping plates and arranged to engage in said groove, said rib having a tapered groove in its outer face and said dove tail groove having a tapered groove in its flat face alining with the groove in said rib, said last named groove to receive a cable to be clamped.

2. A cable clamp including elongated clamping plates, one of said plates having a longitudinally extending, integral, dovetailed and tapered rib extending outwardly from one face thereof, said rib having a cable receiving groove formed in its outer face and an opening through one end thereof communicating with said groove, the other of the plates having a longitudinally extending, tapered and dove-tail rib re ceiving groove in one face thereof to ceive said rib, said last named groove having a cable receiving groove in its fiat face for cooperation with the groove and opening in the rib for holding the cable.

8. A cable clamp vcomprising two coacting clamping members, one of the members hav ing a longitudinally disposed transversely tapered dove-tailed groove, and the other member having a transversely tapered longitudinally disposed dove-tailed rib slidably interlocked with the dove-tailed groove, said groove and rib being also provided with longitudinally disposed tapered cable receiving grooves having gripping faces for en gaging the cable. 7

In testimony whereof I affix my signature in presence of two witnesses.

FREDERIC M. RAYMOND.

Witnesses:

EMIL G. BARBUL, GEO. BORLEY.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

